Bibliografía
The length of the cérvix and the risk of spontaneous premature delivery.
Iams JD, Goldemberg RL, Meis Pj, et al.N Engl J Med 1996;334(9):567-572.
Transvaginal cervical length measurement for prediction of preterm birth in women with threatened preterm labor: a meta-analysis.
Sotiriadis A, Papatheororou S, Kavvadias A, Makrydimas G.Ultrasound Obstet Gynecol 2010; 35: 54-64.
Transvaginal sonographic cervical length for the prediction of spontaneous preterm birth in twin pregnancies: a systematic review and metaanalysis.
Conde-Agudelo A. Romero R, Hassan SS, et al.Am J Obstet Gynecol 2010; 203: 128.e1-12.
Transvaginal ultrasonographic measurement of cervical length as apredictor of preterm birth.
Christannah M, Smith E, Terplan M.Ultrasound Quarterly 2010; 26: 241-248